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Home >> Cadillac >> 2009 >> Escalade Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System & Fuel - Hybrid (Hp2) 6.0L (LFA) - DTC P025A To DTC P0700) >> DTC P0506 or P0507 >> Circuit/System Description

Circuit/System Description

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This vehicle does not use a 12V starter motor to crank the internal combustion engine. A much more powerful 300V drive motor generator can rotate the engine to operating speed, 800 RPM, within just a few hundred milliseconds. During an engine cranking event, the HPCM can detect a condition where the engine is cranking but does not start.